What do you mean by having your computers wiped? When your trial is over they charge your account if you want the service, or they basically lock you out/delete your account if you don't. You just can't access anything anymore. It's all up in the cloud.

MacRumors attracts a broad audience
of both consumers and professionals interested in
the latest technologies and products. We also boast an active community focused on
purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms.